CVE-2020-36321

Severity CVSS v4.0:

Pending analysis

Type:

CWE-22 Path Traversal

Publication date:

23/04/2021

Last modified:

05/05/2021

Description

Improper URL validation in development mode handler in com.vaadin:flow-server versions 2.0.0 through 2.4.1 (Vaadin 14.0.0 through 14.4.2), and 3.0 prior to 5.0 (Vaadin 15 prior to 18) allows attacker to request arbitrary files stored outside of intended frontend resources folder.

Impact

Vector 3.x

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS v3.1 Severity and Metrics:

Base Score: 7.50 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): None
Availability (A): None

Base Score 3.x

7.50

Severity 3.x

HIGH

Vector 2.0

AV:N/AC:L/Au:N/C:P/I:N/A:N CVSS v2.0 Severity and Metrics:

Base Score: 5.00 MEDIUM
Vector: AV:N/AC:L/Au:N/C:P/I:N/A:N

Attack Vector (AV): Network
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): Physical
Integrity (I): None
Availability (A): None

Base Score 2.0

5.00

Severity 2.0

MEDIUM

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:a:vaadin:flow::::::::	2.0.0 (including)	2.4.2 (excluding)
cpe:2.3:a:vaadin:flow::::::::	3.0.0 (including)	5.0.0 (excluding)
cpe:2.3:a:vaadin:vaadin::::::::	14.0.0 (including)	14.4.3 (excluding)
cpe:2.3:a:vaadin:vaadin::::::::	15.0.0 (including)	18.0.0 (excluding)

To consult the complete list of CPE names with products and versions, see this page

CVE-2020-36321

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools